| // protected_1.cc -- a test case for gold |
| |
| // Copyright (C) 2008-2021 Free Software Foundation, Inc. |
| // Written by Ian Lance Taylor <iant@google.com>. |
| |
| // This file is part of gold. |
| |
| // This program is free software; you can redistribute it and/or modify |
| // it under the terms of the GNU General Public License as published by |
| // the Free Software Foundation; either version 3 of the License, or |
| // (at your option) any later version. |
| |
| // This program is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| |
| // You should have received a copy of the GNU General Public License |
| // along with this program; if not, write to the Free Software |
| // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| // MA 02110-1301, USA. |
| |
| // The function f1 is protected, which means that other callers in the |
| // same shared library will call this version. |
| |
| int |
| f1() __attribute__ ((__visibility__ ("protected"))); |
| |
| int |
| f1() |
| { |
| return 1; |
| } |
| |
| // The function f2 is used to test that the executable can see the |
| // same function address for a protected function in the executable |
| // and in the shared library. We can't use the visibility attribute |
| // here, becaues that may cause gcc to generate a PC relative reloc; |
| // we need it to get the value from the GOT. I'm not sure this is |
| // really useful, given that it doesn't work with the visibility |
| // attribute. This test exists here mainly because the glibc |
| // testsuite has the same test, and we want to make sure that gold |
| // passes the glibc testsuite. |
| |
| extern "C" int f2(); |
| asm(".protected f2"); |
| |
| extern "C" int |
| f2() |
| { |
| return 2; |
| } |
| |
| int |
| (*get_f2_addr())() |
| { |
| return f2; |
| } |